28 



CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



Pulvinaria camelicola Sign. 



The female of this species is not unlike Coccus hesperidum, but the 



formation of the white ovisac is a clearly distinguishing character. In 



late summer the female often drops off to the ground, leaving only the 



1^ ovisac observable on the leaf. 



According to Maskell, the adult 

 female is yellowish or reddish 

 brown, naked, slightly convex, 

 elongated; skin smooth, with 

 puncta; length variable, from 



\' IP in about -f of an inch to ^ of an 



{ r-^ inch. Antenna?, according to 



Signoret, with sometimes 6, 

 sometimes 7, joints. Abdom- 

 inal clefts and lobes normal. 

 The insect excretes a narrow, 

 white, cylindrical, cottony ovi- 

 sac, which is conspicuous on 

 the leaf of the plant, and the 

 brown body of the female can 

 be seen at one end of it. The 

 eggs in the ovisac are numerous, perhaps some hundreds. 

 Larva in second stage of female flat, oval, yellowish brown. 

 On Camellia japonica in greenhouses. 



FIG. 10. Pulvinaria camelicola. a, feuiale, greatly 

 enlarged; b. natural size, showing position of 

 scales on linab and leaf. 



Pulvinaria psidii Mask. 



AiUilt Female. — Yellow or yellowish brown, sometimes with a greenish 

 tinge; size variable, reaching ^V of an inch before the ovisac is formed, but 

 shriveling at gestation. The ovisacs cover the twig or leaf with masses 

 of dirty-white cotton, usually accompanied by black fungus. Antennae 

 rather long and slender, of 8 joinfs, of which joint 3 is longest, joint 8 

 next, and the rest shorter and subequal. Feet also rather long; the 

 trochanter is large, and bears a very long hair; tarsus curved, and 

 about half as long as the tibia; upper digitules fine hairs, lower pair 

 long and dilated at the end. Abdominal cleft moderate; anogenital 

 ring with several hairs. The margin of the body bears a row of spiny 

 hairs. 



Female of the second stage yellow, flattish, elliptical; length about 

 2V of an inch. Antennae 6-jointed. 



Larva yellow, flat, elliptical. Antennae 6-jointed. 



Male unknown. 



On ferns, orange, coffee, pomegranates, and alligator pears at quar- 

 antine. 



